PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A little googling told me that sibilance, especially from vocals, falls in the 2 to 10khz range.
http://www.w3.org/ns/prov#wasQuotedFrom
  • axiomaudio.com